Home / 7,811.24-10,779.18-4,454.19

Finding the Fourth Proportional to 7,811.24, 10,779.18 and 4,454.19

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Solution

The fourth proportional to 7,811.24, 10,779.18 and 4,454.19 is: 6,146.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,811.24 : 10,779.18 = 4,454.19 : x
  2. Step 2: Convert to fraction form
    7,811.24/10,779.18 = 4,454.19/x
  3. Step 3: Cross multiply
    7,811.24x = 10,779.18 × 4,454.19
  4. Step 4: Simplify right side
    7,811.24x = 48,012,499.06
  5. Step 5: Solve for x
    x = 48,012,499.06/7,811.24
  6. Step 6: Final answer
    x = 6,146.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.